Class StopAnalyzer

Filters LetterTokenizer with LowerCaseFilter and StopFilter.

You must specify the required LuceneVersion compatibility when creating StopAnalyzer:

  • As of 3.1, StopFilter correctly handles Unicode 4.0 supplementary characters in stopwords
  • As of 2.9, position increments are preserved

Inheritance
System.Object
Analyzer
StopwordAnalyzerBase
StopAnalyzer
Inherited Members
Lucene.Net.Analysis.Analyzer.NewAnonymous(Func<, , >)
Lucene.Net.Analysis.Analyzer.NewAnonymous(Func<, , >, Lucene.Net.Analysis.ReuseStrategy)
Lucene.Net.Analysis.Analyzer.NewAnonymous(Func<, , >, Func<, , >)
Lucene.Net.Analysis.Analyzer.NewAnonymous(Func<, , >, Func<, , >, Lucene.Net.Analysis.ReuseStrategy)
Namespace: Lucene.Net.Analysis.Core
Assembly: Lucene.Net.Analysis.Common.dll
Syntax
public sealed class StopAnalyzer : StopwordAnalyzerBase

Constructors

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StopAnalyzer(LuceneVersion)

Builds an analyzer which removes words in ENGLISH_STOP_WORDS_SET.

Declaration
public StopAnalyzer(LuceneVersion matchVersion)
Parameters
Type Name Description
LuceneVersion matchVersion

See LuceneVersion

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StopAnalyzer(LuceneVersion, FileInfo)

Builds an analyzer with the stop words from the given file.

Declaration
public StopAnalyzer(LuceneVersion matchVersion, FileInfo stopwordsFile)
Parameters
Type Name Description
LuceneVersion matchVersion

See LuceneVersion

FileInfo stopwordsFile

File to load stop words from

See Also
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StopAnalyzer(LuceneVersion, CharArraySet)

Builds an analyzer with the stop words from the given set.

Declaration
public StopAnalyzer(LuceneVersion matchVersion, CharArraySet stopWords)
Parameters
Type Name Description
LuceneVersion matchVersion

See LuceneVersion

CharArraySet stopWords

Set of stop words

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StopAnalyzer(LuceneVersion, TextReader)

Builds an analyzer with the stop words from the given reader.

Declaration
public StopAnalyzer(LuceneVersion matchVersion, TextReader stopwords)
Parameters
Type Name Description
LuceneVersion matchVersion

See LuceneVersion

TextReader stopwords

to load stop words from

See Also

Fields

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ENGLISH_STOP_WORDS_SET

An unmodifiable set containing some common English words that are not usually useful for searching.

Declaration
public static readonly CharArraySet ENGLISH_STOP_WORDS_SET
Field Value
Type Description
CharArraySet

Methods

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CreateComponents(String, TextReader)

Creates TokenStreamComponents used to tokenize all the text in the provided .

Declaration
protected override TokenStreamComponents CreateComponents(string fieldName, TextReader reader)
Parameters
Type Name Description
System.String fieldName
TextReader reader
Returns
Type Description
TokenStreamComponents TokenStreamComponents built from a LowerCaseTokenizer filtered with StopFilter